Projectile



A. FREITAS.

PROJECTILE.

ucnlou men JAN. 10. 19

APP l9. 1 ,3'7 3 ,322. Patented Mar. 29, 1921.

UNITED STATES PATENT OFFICE.

AN TONE FREITAS, OF LAHAINA, MAUI, TERRITORY OF HAWAII.

PROVJECTILE.

To all whom it may concern:

Be it known that I, AN'roNn FRn1TAs,-a citizen of the United States,residing at Lahaina, on the Island of Maui, Territory of Hawaii, haveinvented new and useful Improvements in Projectiles, ofwhich thefollowing is aspecification. V

The purpose ofhe invention is to provide a new and novel form ofprojectile with which there. is associated a peculiar form of nose thatis designed to give the projectile its rotary movement when being fired,the peculiar shapednose serving to keep the projectile positioned alwaysnose forward, 7

To the exact construction in which it is shown and described theinvention is not to be restricted; The right is reserved to make suchchanges or alterations as the actual reduction to practice may suggest,

in so far as such changes or alterations are.

compatible in spirit with the annexed claim.

In the accompanying drawings:

Figure 1 is a view in side elevation of the improved projectile,

Fig. 2 is an end elevation looking at the nose of the'device.

Fig. 3 is a section on the line 33 of is shown in the drawings, theprojectile comprises a cylindrical body 1 at substantially thelongitudinal center of which the flutes 2 begin, the latter extending tothe forward end of the device and gradually increasing in depth besidesbeing spirally arranged around the body at uniformly spaced angulardistances.

The formation of the flutes 2 results in Specification of LettersPatent. Patented Man 29, 1921, Application filed January 10, 1919.Serial No. 270,527.

the provision of the wings 3 which in cross section are of substantiallyarcuate shape with the curved portions so disposedthat they will wipeagainst the wind when the projectile is rotated, as it is designed to bewhen fired. 4 I

In the operation of the invention it is. in-

tended to be fired from a gun whose rifling is intended to create thenecessary swirl as the pro ectile leaves the barrel. Thus as the deviceleaves the barrel the spirals formed on the nose portion serve to worktheir way through the air and because of their tapering depth and spiralshape aid in a measure in propelling the projectile aside fromofi'setting any tendency of the same to assume any position other thanthat in which the extremity of the nose is foremost.

From the foregoing description and the I accompanying drawings, it isbelieved that.

a clear enough understanding of the invention is to be had to render afurther description unnecessary. 1

The lnventionhavlng been descrlbed what 1s claimed as new and useful 1s:

A device of the kind described comprising a' body having spiral flutesformed" therein beginning at a substantially intermediate. point andcontinuing to :one extremity and gradually increasing. in depth from thepoint of b'eginningto said extremity, the upper walls of the flutesforming ANTO'NE FREITAS.

